Cruz, David Octavio. “A Mathematical Perspective for the Behavior of Covid-19 in Boyacá”. Revista Habitus: Semilleros de investigación 1, no. 1 (May 11, 2021): e11504. Accessed July 17, 2024. https://revistas.uptc.edu.co/index.php/semilleros_investigacion/article/view/11504.